Adjustable bearing for power-driven feed rolls



J. S. PECKER Filed Feb. 12, 1929 ADJUSTABLE'BEARING FOR POWER DRIVENFEED ROLLS Z TOR A TTORNE Y.

Patented Oct. 7, 1930 V A r w il-UNITED. STATES PATENT OFFICE-, v

osEnnsrEcK m; or" PHILADE PHIA, rEiv vsYLvAn'm, s abs. 'ro CHARLES F3 tBOGHMANN, or rmLnDELPHIA, rENnsY vAiIIAf AnJUsrABtE BEARING nonrowER-nmvim' 1mm) Ro lins 1 l Application filed Fel x-nary 12, 1929.Serial No. 339,391;

ings for pow-er driven feedrolls-and more unto appendednr 1 ,jspecifically deals with power driven rolls in In thedrawings i i whichthe pass therebetween be varied Fig. 1 11s a vert cals view, taken Thisinvention relates to adjustable bean fromthe' scopeyor. oif the clainishere topermlt the feed rolls'to operate on sheet along the line Af-A ofFig. 2.

material of varying thicknesses. i j Fig. 2 is a side elevation of myinventiond This invention is designedwithparticular Fig. 3is a: detailView of theadjust able referenceto paper feed -rolls employed in bearingmember anduits cooperatin gfparts f connection with envelope fillingmachines, shown in disassembled relation.

While the invention, will be described as Refei-ringemore partic larlyto 60 l An additional object of the present inven- 17,, and 17?.

being used in connection with such machines; ings, I have indicated thefeed roll s as being it will, of course, be readily understood that usedinconnection with an envelopefilling it may be utilized in connectionwith any feed, machine which comprisesrside frames indirolls which'arecapable of being utilized in eated at land 2, which are suitably spacedconnection ,withsi'milar bearings. v to receive'therebetween feed rollsand 4.

An object of the present invention is to .LOne of'thefeedrolls,such'.asindicatedat provide an exceedingly simple 1mann'er of3, is fixedly secured in the frames land 2 supporting one of a pairoffeed rolls so that forrotation bymeansof reduced-hubs 5 and the samemay be adjusted to accommodate 6 having keyed to the ends thereof gears?varying, thicknesses of material being fed, d ym ans f @3 8 a d lo,sqflm w i whileat the same time permitting the power the roll 3 iscapable of rotation up n impartoperatingflelements to remain in engagedg p wer e ge a dt positi i I i i r 1 1H0"GTI16I1i}. 1 l l Another objectofthe presentinvention is I, The feed roll indicated at aislikewise protoprovide an adjustment for one ofa pair 'v ded with reduced hubs 11 and'l2which of rolls which, while permitting adjustment extend throughelongated openings lgand 1d of said roll, atthe same timeforces the rollforn ed'intherespective sidejframes 1 and 2, into yielding engagementwith the material and to the e'ndof the reduced hubsll andll 0 i beingfedbetween therolls. gears 15 and '16 are securedby means of keys 86 vtion is to provide a rolladjustment which can The gears 1 5Aand 16, areso positionedas to it be rapidly andlefl'ectivelyvaried to suit conmeshwith the gears 7 and 8 on the feed roll ditions prevailing in themachine, theadj ust- '3 solthat rotatlon of o'neiof thefeed'rolls 1mmentbeing of such a simple character asto parts'rotary motion to theotherfeed roll, it

, eliminate the necessity of any, special tools; being understood that aplnralitylofpairs of to uirement o long a they 'donot departgreateriliength than the elongated open ngs 10o and the adjustablemechanism is so located f ed l s mj i o a A-are p y d,

with respect to the frame of the machine that which are gearedtogether-fin the manner I i it is readily, accessible from the exteriorin illustrated, whereby rotary 1110l3101 1 1 S nnorderthat theadjustment: may be effected parted to the entlregserles of rolls fromawithout disassemblingany portions of, the single powersource 1 Q lmachine; M .1 j In order to prov de means forad ustmg With these andother obj ectsin view, refer- O O t l d Ql U 1LS qf M 1 encewillbe hadtothe following description, secure to the exterior faces of the. frames'1 f together with the accompanying drawings and2 the brack ets 18 and18", by means of forming part hereoflandwhilel have shown sorewsj19 orother suitable iastemngmeans, 95 a-s ecifie embodiment, it willbeunderstood and the brackets 18 and 18 areprov de-d-w th that Inlayresort to minor changes in the varielongated open ngs 20 which registerwith ions details, and similarly that the finish or theelongatedopenings 13; and 1a in th ide 1" arrangement of parts maybe varied tosuit iramesjl and 2,.butwh1ch arefof slightly ingsblocks 24 and 24 whichare provided.

with bores 25 to re'ceivevthe reducedhubs 11 and 12, which are rotatablysupported thereby. Each bearing. block is; provided. on: its inner facewith a reduced hub 26 of a length similar to the thickness of the.'brackets"17 :1

and 18, and of a diameter corresponding with the width of the elongatedopening 20 in each bracket, so that it is readily seen that the bearingblocks 24 and 24, while capable of verticalmovement or. movement inthedirection of length of the slots'20, are incapable oflateralimovement or movement inthedirection of the width of the slots20.

Integrally formed withthe bearing blocks 24 and 24 are the upstandingarms 27- and 28 terminating the inwardly directed ears 29 a1 1d,3,0,which are adapted to overlie the ears 21 and22 on the brackets 18-and;18andin spaced relation thereto, and each" of the ears 29 and 30 areprovided with openings 31, which openings are so positionedas to alignwith the screw threaded openings 23 in the brackets 18 i and 18.

Adjustment ofthe roll, such as indicated at 4, is accomplished by meansof bolts 32 and 33 which pass through the aligned openings 31 and 23,and the bolts 32 and 33 are screw threaded at their lower ends so as tothread throughthe openings 23 in the brackets 18 a n;d 18,, theremaining portions of theibolts having smooth surfaces to permit theangular ears 29 and 30 to slide. thereon. Interposed between the angularears 29 and 30 and the heads of the bolts 32 and 33 are coiledsprings 34and 35 which normally exert pressure on the angular cars 29 and30 andtend to force the roll 4 into engagement with the roll 3. Itwillbeseenthat by adjusting the bolts 32 and 33 the sprin s 34 and 35 arecompressed to a greateror lesser extent, and consequently that the; roll4 is urged toward the r0113 withgrea-ter or lesser pressure, dependingupon the direction ofrotation of the bolts 32, and 33.1

It will further be seen that when sheet material of a thickness greaterthan the pass between the two rolls3 and 4 is being fed. the roller 4will automatically adjust itself againstthe tensionof the springs 34.and 35 soas to accommodate the material of greater thickness inthis way,providinga yielding contact'between the roll 4 and the material beingfedg From the foregoing itis clearly apparent that the means, foradjusting the roll 4 are provided on the exterior faces of the frames 1and 2, so that ready access may be had to the adjusting mechanism, andthat there is no need for disassembly of any portions of the machine toaccomplish the necessary adj ustment, and while I have deseribed'myinvention as beingapplicable to the .top roll 4 of the pair, it will bereadily understood that the top roll 4 could be fixedly secured and theroll .3 adjusted by similar. mechanism, or

if, it is de'sirable, similar adjusting mechaby forming these parts inthe-mannershown the invention can be cheaplymanufactured by well knownmetalfworking operations such as stamping, swaging or the-like, therebymaterially reducing the expense involveddn the production thereof:

hat is claimed is 1. A device of the character described comprising afi'ame having a plurality of pairs ofopenings therein, one pair offwhichis elongated, a pair of rollers journaled in said openings, bearingblocks atopposite ends of the roller journaled in the elongated openingsprovided with upstanding arms. terminating in inwardly projecting earshaving an opening therein, brackets secured tosaid frames and havingangular extensions underlying the ears on the upstanding arms and havingthreaded openings therein, and a bolt passingthrough the openings in thebracket members aud'ears by means of whichthe roller mounted inthe'elo'ngated openings may be adjusted.

2. Av device of the character described con1 prising frame membersprovided wi th pluralityof pairs of;openings one pair of which iselongated a roller fixedly journaled in one pair of openings, asecond'roller having hubs projecting through the pair ofelongatedopenings, gears on eachpair of said-rollers meshing with each other,bearing blockson. opposite ends of-saidhubs provided'witli upstandingarms terminating in inwardly directed ears carrying openings therein, a

bracket secured to the exterior faccsof said framemembers andhaving anangularextension underlying, the said ears and; hav

ing threaded openings therein, bolts passmg through, the openings m saidangular extensions'and ears and threadedly' engaging said extensions,and a spring carried by said bolts and interposed between the headthereof and the ears.

3. A device of the character described, comprising frame membersprovlded with a plurality of pairs of openings, one pair of which. 1selongated, rollers ournaled in said openings, gears carried at oppositeends of each roller, brackets secured to said frame members and havingelongated'openings therein registering with the elongated openings insaid openings-in the frame members and termeans for sliding said bearingblocks to ad just the pass between the rollers.

4. device of the character described comprising frame members providedwith a p111:

rality of pairs of openings one pair of which is elongated, rollsournaled in said openings in it superposed relation and havinginteremgaging gears at opposite ends thereof, bear ing blocks at opposite endsofthe roll which is mounted in the elongated openings, arms on eachbearing block terminating in inwardly. directed ears havingan openingtherein,

brackets secured to the frame members and as provided With outwardlydirected extensions having threaded openingstherein registering withtheopeningsin the inwardly directed ears, a spring-cooperating with eachbearing block and normally urging the. rolls towards the frame-membersbut of'greater length than each other, and means cooperating with theoutwardly directed extensions and the inwardly directed arm for varyingthe tension of said springs.

5. A supporting device fora shaft comprising a bearing member, an armextending from the bearing member and having a latorally directed eardisposed parallel with the plane of said bearing member and perforated,

a bracket having an elongated opening adapted to lie opposite saidbearing member and provided with a laterally directed extension to lieunder the said'ear and in spacedrela tion thereto,and having a threadedopening,

and a threaded bolt operating-through the" opening of said ear andthreadedly engaging my hand, this 9th and provided with a laterallydirected extension to lie under the said ear and inspaced relationthereto, and having a threaded open-' 1 ing, a threaded bolt operatingthrough the opening of saidear and threadedly engaging the threadedopening of said extension, whereby to adjust the ear and extension to'ward and away from eachother, and a spring encircling said bolt andlocated between the outer end of the bolt and said ear and which springis tensioned under the influ'ence of turning movement of said bolt.

In testimony whereof I have hereunto set day of February, 1929. i VJOSEPH S. PEGKER.

the threaded, openin of said extension,

whereby to adjust the ear and extension toward and awayfrom each'othen i6. A supporting device fora shaft coma prising a bearing'member,an armextending from the bearlng member and'havlng a laterally directed eardisposed parallel with the plane of said bearing member and perforated,a bracket having an "elongated opening adapted to lie opposite saidbearing member

